Bicycle-lock



(NoMode.) 4 C. @FREE 8s VN. F. HEATH' BIGYGLE Lock.

No. 52:7;418. Patented ont. 1e, 1894 UNITED STATES PATENT OFFICE.-

CIIARLEs o. FREE ANDA NED F. HEATH, or DENVER, ootoi'ntnd.` V LBICYCLE-wolof SPECIFICATION forming part of Letters Patent No. 527,418,dated October '16, 1894.

Application tiled December 29,1893. Seal No. 495,153. (No model.)

the upper part thereof, and at'the bottom, of one side of the saidcasing is a chainslotrti, y while at the top of the casing is a round'orfV angular opening 7. Within the casing is lo- 5 5 To aZZ whom it mayconcern.'

Be it known that we, CHARLES C. FREE and NED F. HEATH, citizens of theAUnited States, residing at Denver,in the county of Arapahoe and Stateof Colorado, have invented certain new and useful Improvements inBicycle-Locks.; and wedo hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the artto which it appertains to make `and use thesame.

This invention relates to bicycle locks, and has for its object toprovide means for securing one or both wheels of a bicycle againstmovement, of the chain wheel, or any part of the running gear, ormovement mechanism which is contributory to the movement of the machine.

With these and other objects in view, the invention consists of theconstruction and arrangement of the several parts which will be morefully hereinafter described'and claimed.

In the drawings: Figure 1 is a side elevation of a portion of a bicycle,showing the improved lock applied thereto in one of different ways inwhich it can be applied. Fig. 2 is a top sectional plan view. Fig. 3 is.a

front or face sectional View. Fig. 4 isa detail perspective view of aportion of the locking chain and a round head carried thereby.

. to indicate corresponding partsin the several views.

Referring to the drawings, the numeral 1 designates a casing having atthe back thereof a pair of hinged clamping jaws 2 with oppositelydisposed lips 3 at their terminating i ends adapted to be engaged by abolt, rivet or other fastening device tow.; secure the said clampingarms over a portion of the frame.

` @It will be understood that these clamping vsame fast in the casing.

cated a stud 8 on which is `mounted a rotatable chain pulley 9 having`aspring chamber lO in the rear thereof, to receive a spring 11,

one end of which is secured to the said pul. ley and the other end tothe rear of the c as- 6o adapted to pass out of the chain slot inthej6`5 lower portion of the casing heretofore referred to and havingthereon eithera round or an angular or a square head l5, as fully shownin the accompanyingl drawings, the,

said head 15 being larger in diameter thanjo the chain slot andpreventing the entire ingress ofthe chain within the casing.I The saidchain is employed to lock the parts of the bicycle or analogous machineagainsty f movement and when it is desired to use the` ,75

saine, it is drawn outward from the. casing and causes a rotation of thechain pulley and fa winding action of the spring, and after the'- ehainhas been drawn out and caused to engage the movable part of the bicycleor'other 8o machine which it is adapted tolock, the round or square headof the free end of the` chain is caused to engage the slot in theupperend .p

of the casing and passes througha'similar j opening 16 in a springactuated latch 17 which 85 engages the groove in the head andholds th'eWhen it is desired to release the head from the latch,a key 18isinserted in the key-hole in the face plate, and by turning the said keyLto bring the opening therein in such position as to permit the head tobe withdrawn, it being understood, that the opening in the latch islarger than the head and that` the spring action of said latch causesthe wall of the 95 opening to engage the groove in the head and lock thesame against withdrawal, until released by the key as stated. 1 1

The chain pulley heretofore described is a frictional pulley, and theedge thereof is enmo gaged by a frictional brake pawl19',whichis. springactu ated and normally in engagementu the latch is operated 9o with theperiphery of the said pulley. This'. brake pawl is fulcrnmed at asuitable pointfand has an end' projecting beyond its fulcru'm to whichis, attached the inner end of" a push rod 20,having a' suitable head onthe lenter end. When it is desired 'to release'the chain from a securing'position and store it within the casing of the lock, the push rod 2O isoperated to release the brake pawl and permit the chain pulley tooperate through the medium of the springA and to wind the zeA Achainthereon automatically, and thereby store said chain within theA casing.

While the lock has been'shown applied to a bicycle, it will'beunderstood that it'cau be construction can be madeand substituted forthose shown and described, without in the Ving witnesses.

least departing from the nature or spirit of the invention'.

Having thus described the invention,what is claimed as new is In alockofvthe character described, the combination oli a spring actuatedchain pulley, a chain in l connection `therewith and adapted to be woundthereon and having a head on thefree end thereof, a lock forenconsist'ing of a spring actuated pawl haring a push rod attached toone end thereof and extending through the casing of the lock,substantially as and forthe pu rposes specified.

In testimony whereof We have signed this specification in the presenceof two'subscrib- CHARLES c. FREE. e NED E; HEATH..

lVitne'sses: i

WILLIAM TREDER, C. PETER VScript/rz. i

gagi'ngthe saidhead, and a frictional device'

